/**
 * @param {number} n
 * @return {number}
 */
var climbStairs = function(n) {
	let dp = new Array(n+1).fill(0);
	dp[0] = 1;
	dp[1] = 1;
    for (let i = 2; i <= n; i++) {
    	dp[i] = dp[i-1]+dp[i-2];
    }
    return dp[n];
};

let testcase = climbStairs(2);
console.log(testcase);
export default climbStairs;